The man, a resident of this town of Zhenjiang, was hospitalized on April 28 and diagnosed with H10N3 on May 28, the wellness cost stated on Tuesday, adding that his condition remains stable.
It didn't give details on the way the guy was infected but stated evaluation of his close connections found no additional instances and the possibility of spread was quite low.
Little is known about the virus, which seems to be infrequent in birds, according to the Food and Agriculture Organisation (FAO), and doesn't lead to severe illness.
The World Health Organization (WHO) stated while the origin of the patient's vulnerability to the H10N3 virus wasn't known and no additional cases were discovered among the local inhabitants, there wasn't any sign of human-to-human transmission nonetheless.
Yet avian flu viruses that have very little effect on birds could be more serious in people, like the H7N9 breed that killed nearly 300 people in China throughout the summertime of 2016-2017. The WHO has stated there'd been only rare cases of person-to-person spread of this H7N9 virus.
The danger of further disease with H10N3 is presently thought to be quite low, with specialists describing the situation as"jagged".
Such instances happen sometimes in China that has enormous populations of farmed and wild birds of several species.
And with increasing surveillance of avian flu in the general population, more illnesses with bird flu viruses have been picked up.
Seven individuals infected with the virus were asymptomatic, police said.
Experts will be on alert for any clusters of H10N3 instances, but for the time being, one instance isn't a lot of concern.
"Provided that avian flu viruses circulate in poultry, intermittent disease of avian flu in humans isn't surprising, which can be a vivid reminder that the danger of a flu pandemic is persistent," the WHO told Reuters in a statement.
However, flu viruses can mutate quickly and combine together with different breeds circulating on farms or one of migratory birds, called"reassortment," meaning that they may make genetic changes that pose a transmission threat to individuals.
The genetic sequence of the virus which infected the individual hasn't yet been released, and certainly will be required to fully evaluate its risk.
Researchers may wish to understand how readily H10N3 can infect human cells to ascertain whether it might grow to be a larger danger.
By way of instance, the H5N1 version that first infected people in 1997 was the most lethal, killing 455 individuals worldwide so far.
It would only require a few mutations prior to the H5N1 variation increases the ability to spread readily from person-to-person, stated Ben Cowling, professor in the School of Public Health in the University of Hong Kong, which makes it a top priority for surveillance.
Possessing the hereditary information to the H10N3 version would help evaluate if it had been"close to being the sort of virus we ought to worry about", he explained.